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KMID : 0380119820050010054
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Korean Journal of Ecology
1982 Volume.5 No. 1 p.54 ~ p.62
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Ecological Studies on Vegetation Recovery of Burned Field after Forest Fire
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Abstract
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This recovery of vegetation and soil properties in the burned fields after forest fire were studied in Chung Cheong Buk Do area, Korea, from July 23 to 28, 1981.
Miscanthus sinensis var. purpurascens, Carex humilis and Lespedeza bicolor were dominant species in the burned field of the second year after forest fire as well as the unburned field. Especially, Lespedeza bicolor was gradually grown to the dominant species.
Lespedeza bicolor, Carex, humilis and Miscanthus sinensis var. purpurascens were the dominant species in the burned field of the fifth year after forest fire.
Biological spectra of the burned fields were similar to the unburned fields with H-e-D_1-R_5 or Ph-e-D_1-R_5 from the second year after forest fire.
Accordingly, biological spectra were recovered to the unburned fields from the second year.
Degree of succession was DS=423 in the burned field and DS=524 in the unburned field in 1981.
The DS of the burned fields was gradually increased and recovered to be similar to the unburned from the second year.
In the species diversities and evenness index, H, e and β of the burned field in 1981 were higher and λ was lower than the unburned field, but all of the indices were recovered to the unburned field from the second or third years.
Accordingly, the vegetation of the first year was the complex community in view of floristic composition, but it was recovered to the simple community as unburned field from the second or third years.
In the soil properties, pH, total nitrogen, available phosphorus, exchangeable potassium, exchangeable calcium and exchangeable magnesium were increased and organic matter was decreased due to forest fire, and then was recovered to the unburned field from the second or third years.
The vegetation and soil properties of the burned field after forest fire were similarly recovered to the unburned field from the second or third years.
Accordingly, there was a close relationship between the trend of vegetation recovery and the changes of soil characteristics after forest fire.
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KEYWORD
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